In revolving fire-ar-ivjs



J. RUPERTUS. nEvoL'y-zm FIREPARMS.

Patented Nov. 9, 1875.

n. Firms. Puo

To-UTHDGRAPMER. WASHINGTON. D C.

JACOB RUPERTUS, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN REVOLVING FIRE-ARMS.

Specification forming part of Letters Patent No. Ilhl, dated November 9, 1875; application filed August 16, 1R75.

To all whom it may concern:

Be it known that I, JACOB RUPERTUS, of Philadelphia, Pennsylvania, have invented certain Improvements in Revolving Fire- Arms, of which the following is a specilication rIhe main objects of my invention are, first, to eifectuallylock and release the cylinders of revolving firearms by simple devices; second, to prevent the accidental discharge of any of the cartridges; third, to prevent the first notch of the hammer during its descent from catching against the trigger; and, fourth, to prevent the cylinder from being moved too far by the action of the usual finger. These objects I attain in the manner which I will now proceed to describe, reference being had to the accompanying drawing, in which- Figure l is a vertical section of sufficient of a revolving fire-arm to illustrate my invention; Figs. 2, 3, and 4, views of parts of Fig. l, showing the operating parts in different positions; Fig. 5, a rear view of the cylinder; and Fig. 6, a sectional view of part of the cylinder.

A represents the hammer, B the cylinder, D the frame, E part of the barrel, and I the trigger, of a revolving fire-arm. The cylinder B has, in the present instance, seven bores, and is, as usual,lturned by the hammer, through the medium of the ordinary finger and ratchet com mon to other revolvers. At the rear of the cylinder there are as many notches e as there` are bores, the notches being situated between the said bores and at the edge ofthe cylinder, and each notch being formed, in the present instance, by two projecting lugs of such aform and size as not to interfere with the heads of the cartridges.

Nhen my improved re-arm is not required for immediate use, the nose of the hammer is introduced into one or other of the notches e, and is thus isolated from the cartridge; hence the loaded weapon can be carried in the pocket with perfect safety.

The cylinder-stop G., which constitutes the main feature of my invention, consists of a lever, of the form shown, hung loosely to a pin passing' through the frame, the front arm of this lever havin g a tooth or projection, c', adapted to the notches c in the cylinder. rIhese notches e are ot' peculiar shape, that portion of each notch which receives the nose of the stop G being curved to admit of the free movement of the said stop without interfering with the requirements of the notch as a rest for the nose of the hammer. When the hammer is downin fact, before it strikes the head of the cartridge-the stop Gr is under the sole control of the spring H, which tends to maintain the projection of the stop in one ofthe notches of the cylinder, and thus locks the latter, as shown in Fig. l.

On raising the hammer from the position shown in Fig. l to that seen in Fig. 2, where the first notch x has passed the projection y of the trigger, the projection b 011 the hammer has so acted on the cylinder-stop as to Withdraw its projection ffrom the notch in the said cylinder, thereby setting the latter at liberty, so that it can be turned bythe usual finger and ratchet on the further movement ot' the hammer. Before the hammer has reached the position of full-cock, as shown in Fig. 3, the cylinder-stop has been released from the control of the projection b of the hammer, and through the action of the spring H the projection t' has again entered one of the notches of the cylinder, so that the latter must be locked when the hammer reaches the position of full cock. I/Vhen the hammer is released by pulling the trigger the projection b Will strike the cylinderstop and cause the projectiont' of the same to penetrate farther into the notch of the cylinder than heretofore. At the same time the spring H will be depressed against the projection m of the trigger, (see Fig. 4,) and will prevent the projection y of the said trigger from entering the notch x of the hammer and interfering with the downward movement of the same. Vhen the hammer, continuing its downward movement, has again reached its rst position, as shown in Fig. l, it will have no further control of the cylinder-stop. Hence the .spring H will restore the stop to its original position, and will cease to act on the trigger. The centerpin lVI, on Which the cylinder revolves, is. split, as shown in Figs. 1 and 6, the cylinder being so tted to the pin that it tends to sligh tly contract the same hence there must be a continuous tendency on the part of the split pin to expand and cause such friction against the bore of the cylinder as to prevent Acase thel stop would fail to enter'the notch. In

splitting'the center-pin longitudinal slots are formed, and those have the advantage of forming receptacles for receiving the dirt formed 0n the pin by firing. In the present instance the center-pin is tubular; but a solid pin may be split with the view of imparting to it the abovedescribed advantages.

I do not desire to claim, broadly,'a split center-pin for the cylinder of a revolver; but

I claim as my invention- 1. The combination, in a revolver, of the cylinder B, notched at its rear edge, the cylinder-stop G, and the hammer A, with its projection b, all substantially as herein set forth.

2. The combination of the hammer A, cylinder-stop G, spring H, and projection mV on the trigger.

3. The notches e, each of which is adapted to the `nose of the hammer, and continued on a curve to suit the nose of the stop G, as set forth.

4;. In combinationv with the cylinder of a revolver, a center-pin split throughout the length Y of the cylinder, and restricted in its expansion by the same, all as set forth.

In testimony whereof I have signed my name to this specication in the presence of two subscribin g witnesses.

JACOB RUPERTUS.

Witnesses:

HUBERT HoWsoN, HARRY SMITH. 

